I have an object with some references (no containments).
Whenever I try to delete/detach that object using EcoreUtil.delete(object, true), I will get this exception:

Caused by: org.eclipse.emf.cdo.util.CommitException: Rollback in HibernateStore: org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations): [NatuerlichePerson#e64987a9-73a0-49ac-8482-dc6ff5681580]
at org.hibernate.internal.SessionImpl.forceFlush(SessionImpl.java:1139)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:182)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:114)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
at org.hibernate.internal.SessionImpl.fireSaveOrUpdate(SessionImpl.java:641)
at org.hibernate.internal.SessionImpl.saveOrUpdate(SessionImpl.java:633)
at org.hibernate.engine.spi.CascadingAction$5.cascade(CascadingAction.java:259)
at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:380)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:323)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:409)
at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:350)
at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:326)
at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:165)
at org.hibernate.event.internal.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:160)
at org.hibernate.event.internal.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:151)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:88)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1127)
at org.eclipse.emf.cdo.server.internal.hibernate.HibernateStoreAccessor.doWrite(HibernateStoreAccessor.java:973)
at org.eclipse.emf.cdo.spi.server.StoreAccessorBase.write(StoreAccessorBase.java:151)
at org.eclipse.emf.cdo.internal.server.TransactionCommitContext.write(TransactionCommitContext.java:531)
at org.eclipse.emf.cdo.spi.server.InternalCommitContext$1.runLoop(InternalCommitContext.java:46)
at org.eclipse.emf.cdo.spi.server.InternalCommitContext$1.runLoop(InternalCommitContext.java:1)
at org.eclipse.net4j.util.om.monitor.ProgressDistributor.run(ProgressDistributor.java:96)
at org.eclipse.emf.cdo.internal.server.Repository.commitUnsynced(Repository.java:917)
at org.eclipse.emf.cdo.internal.server.Repository.commit(Repository.java:910)
at org.eclipse.emf.cdo.server.internal.net4j.protocol.CommitTransactionIndication.indicatingCommit(CommitTransactionIndication.java:295)
at org.eclipse.emf.cdo.server.internal.net4j.protocol.CommitTransactionIndication.indicating(CommitTransactionIndication.java:97)
at org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndicationWithMonitoring.indicating(CDOServerIndicationWithMonitoring.java:109)
at org.eclipse.net4j.signal.IndicationWithMonitoring.indicating(IndicationWithMonitoring.java:86)
at org.eclipse.net4j.signal.IndicationWithResponse.doExtendedInput(IndicationWithResponse.java:92)
at org.eclipse.net4j.signal.Signal.doInput(Signal.java:328)
at org.eclipse.net4j.signal.IndicationWithResponse.execute(IndicationWithResponse.java:65)
at org.eclipse.net4j.signal.IndicationWithMonitoring.execute(IndicationWithMonitoring.java:65)
at org.eclipse.net4j.signal.Signal.runSync(Signal.java:253)
at org.eclipse.net4j.signal.Signal.run(Signal.java:149)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
at org.eclipse.emf.internal.cdo.transaction.CDOSingleTransactionStrategyImpl.commit(CDOSingleTransactionStrategyImpl.java:84)
at org.eclipse.emf.internal.cdo.transaction.CDOTransactionImpl.commit(CDOTransactionImpl.java:1181)
at org.eclipse.emf.internal.cdo.transaction.CDOTransactionImpl.commit(CDOTransactionImpl.java:1205)